Do you guy knew if Dell E7250 is able to install ADDITIONAL ssd in M.2 Expansion Slots?
In the specification it's show there are free M.2 slot for WWAN or SSD.
If it's support what SSD M.2 model should i but 2242?
The additional slot referenced is in the E-dock expansion adapter - NOT the system. The system takes only one internal M.2 drive.
If you have (or purchase) the E-dock port adapter, you'll have the additional M.2 slot.